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Precision-machined cast-iron valve guide compatible with unleaded fuel; OEM-style replacement.
Precision C63000 bronze valve guides with tapered nose design for improved flow. OEM style; top hat seals sold separately.
Precision-machined cast iron valve guide compatible with unleaded fuel and all valve-stem materials. Made in the USA.
Precision-machined shouldered valve guide compatible with no-lead fuel; accepts special seals (sold separately). Made in the U.S.A.
Computer-designed alloy-steel cams, heat-treated and made in the USA. Four-gear set required. Installer must check clearances.
Precision-ground cams for Big Twin that increase mid-range and top-end power. Works with solid or hydraulic lifters; check clearances before installation.